The energy-momentum tensor form factors are studied in Φ4 theory to one-loop order with particular focus on the D-term, a particle property which has attracted a lot of attention in the recent literature. It is shown that the free Klein-Gordon theory value of the D-term Dfree=−1 is reduced to Done-loop=−13 even if the Φ4 interaction is infinitesimally small. A companion work in Φ3 theory confirms this

We propose gauge covariant neural networks along with a specialized training algorithm for lattice QCD, designed to handle realistic quarks and gluons in four-dimensional space-time. We show that the smearing procedure can be interpreted as an extended version of residual neural networks with fixed parameters. To demonstrate the applicability of our neural networks, we develop a self-learning hybrid

We investigate ϕ2n+1 deformations of the generalized free theory in the ε expansion, where the canonical kinetic term is generalized to a higher-derivative version. For n=1, we use the conformal multiplet recombination method to determine the leading anomalous dimensions of the fundamental scalar operator ϕ and the bilinear composite operators J. Then, we extend the n=1 analysis to the Potts model

We explore the impact of the backreaction of evaporation on the quantum state of primordial black holes (PBHs), known as “memory burden,” on the baryon asymmetry production in the Universe through high-scale leptogenesis. Focusing on PBH masses ranging from 1 to 1000 g, we investigate the interplay between the nonthermal production of heavy sterile neutrinos and the entropy injection within this nonstandard

Recent experiments have found spin alignment of J/ψ with respect to the event plane in heavy ion collisions, suggesting a medium effect that is spin dependent. We propose a possible mechanism with polarized dissociation from the motion of J/ψ with respect to the medium. We calculate the polarized dissociation rate for a quarkonium spin triplet state from spin chromomagnetic coupling in the potential

Recently Hollands proposed a new formula for the entropy of a dynamical black hole for an arbitrary theory of gravity obtained from a diffeomorphism covariant Lagrangian via the Noether charge method []. We present an alternative, pedagogical derivation of the dynamical black hole entropy for f(R) gravity as well as canonical scalar-tensor theory by means of conformal transformations. First, in general

Recognizing symmetries in data allows for significant boosts in neural network training, which is especially important where training data are limited. In many cases, however, the exact underlying symmetry is present only in an idealized dataset, and is broken in actual data, due to asymmetries in the detector, or varying response resolution as a function of particle momentum. Standard approaches,

We explore the potential of studying sterile neutrinos at a future high-energy muon collider, where these particles can generate small active neutrino masses via the seesaw mechanism and exhibit long-lived particle signatures. A Dirac sterile neutrino model with U(1)Lμ−Lτ symmetry is introduced, where the heavy right-handed neutrino (NR) produces tiny active neutrino masses, and the light left-handed

The corrigendum provides a list of corrections necessary for accurately understanding the mathematical background of the original paper. However, these corrections do not affect the computational aspects, analysis, or conclusions presented in the paper.

We present a detailed investigation of quasinormal modes (QNMs) for noncommutative geometry-inspired wormholes, focusing on scalar, electromagnetic, and vector-type gravitational perturbations. By employing the spectral method, the perturbation equations are reformulated into an eigenvalue problem over a compact domain, using Chebyshev polynomials to ensure high precision and fast numerical convergence

In this work we compare the SuSAv2 model, based on the superscaling phenomenon and the relativistic mean field theory, with charged-current inclusive neutrino cross sections from the NOvA and MicroBooNE experiments, whose targets are composed primarily by C12 and Ar40, respectively. The neutrino energy in these experiments covers a kinematic range from tens of MeV to roughly 20 GeV. Thus, we consider

We advocate a strategy of bootstrapping Feynman integrals from just knowledge of their singular behavior. This approach is complementary to other bootstrap programs, which exploit nonperturbative constraints such as unitarity, or amplitude-level constraints such as gauge invariance. We begin by studying where a Feynman integral can become singular, and the behavior it exhibits near these singularities

Calabi-Yau compactifications of the E8×E8 heterotic string provide a promising route to recovering the four-dimensional particle physics described by the Standard Model. While the topology of the Calabi-Yau space determines the overall matter content in the low-energy effective field theory, further details of the compactification geometry are needed to calculate the normalized physical couplings and

We propose a new factorization pattern for tree-level Yang-Mills (YM) amplitudes, where they decompose into a sum of gluings of two lower-point amplitudes by setting specific two-point nonplanar Mandelstam variables within a rectangular configuration to zero. This approach manifests the hidden zeros of YM amplitudes recently identified. Furthermore, by setting specific Lorentz products involving polarization

In [B. Taghavi Classical Liouville action and uniformization of orbifold Riemann surfaces, ], two of the authors studied the function 𝒮m=Sm−π∑i=1n(mi−1mi)loghi for orbifold Riemann surfaces of signature (g;m1,…,mne;np) on the generalized Schottky space Sg,n(m). In this paper, we prove the holographic duality between 𝒮m and the renormalized hyperbolic volume Vren of the corresponding Schottky 3-orbifolds

We conduct a systematic investigation of freeze-in during reheating while taking care to include both direct and indirect production of dark matter (DM) via gravitational portals and inflaton decay. Direct production of DM can occur via gravitational scattering of the inflaton, while indirect production occurs through scattering in the Standard Model radiation bath. We consider two main contributions

We study a landscape of four-dimensional N=1 superconformal field theories (SCFTs) with identical central charges. These theories are obtained by renormalization group flows triggered by supersymmetry-preserving superpotential deformations of the N=1 gauging of the flavor symmetry of a collection of N=2 Dp(G) Argyres-Douglas SCFTs. In this work, we focus on the fixed points in the landscape of the

We study the Hagedorn temperature TH of strongly coupled quantum field theories admitting a holographic string or M-theory description in various regimes and scenarios. In the first part of the paper we propose a “thermal scalar” effective approach to the calculation of TH in eleven-dimensional supergravity. The proposal allows us to extend the existing results for TH to the strongly coupled string

We investigate a class of quantum field theories with relativistic Luttinger fermions and local self-interaction in scalar channels. For an understanding of possible low-energy phases, we first classify the set of mass terms arising from scalar fermion bilinears. For large flavor numbers, we show that each of our models features a coupling branch in which the theory is asymptotically free. In order

We investigate the behavior of vector mesons ρ, ϕ, and J/Ψ in both nonrotating and rotating thermal media using the soft-wall holographic QCD model with four flavors. By incorporating anisotropic backgrounds derived from the Einstein-Maxwell-dilaton action, we incorporate rotational effects via a U(1) gauge field, and the induced polarization of gluons is described by a rotation dependent dilation

The lightest neutralino (χ˜10) is a promising dark matter (DM) candidate in the R-parity conserving minimal supersymmetric standard model. In this work, we focus on dominantly Higgsino-like and wino-like χ˜10 DM, with small admixtures of gauginos and Higgsinos, respectively. In particular, we explore large one-loop corrections to the χ˜10χ˜10Z vertex, which can significantly affect the estimation of

We investigate the large-N limit of the Berenstein-Maldacena-Nastase (BMN) matrix model with classical bosonic membranes which have spherical topologies and spin inside the 11-dimensional maximally supersymmetric plane-wave background. First we classify all possible M2-brane configurations based on the distribution of their components inside the SO(3)×SO(6) symmetric plane-wave spacetime. We then formulate

The upcoming galactic core-collapse supernova is expected to produce a considerable number of neutrino events within terrestrial detectors. By using Bayesian inference techniques, we address the feasibility of distinguishing among various neutrino flavor conversion scenarios in the supernova environment, using such a neutrino signal. In addition to the conventional Mikheev-Smirnov-Wolfenstein, we explore

The initial state of the spherical gravitational collapse in general relativity has been studied with different methods, especially by using a priori given equations of state that describe the matter as a perfect fluid. We propose an alternative approach, in which the energy density of the perfect fluid is given as a polynomial function of the radial coordinate that is well-behaved everywhere inside

We investigated the possibility that neutron stars could be described by a fermion-boson star with a quartic self-interaction in the boson sector. Specifically, by varying the polytropic constant K and adiabatic index Γ in the polytropic equation of state, the boson mass µ, and the self-interaction parameter Λ, we construct equilibrium configurations of these mixed-stars with total mass compatible

Star formation has often been studied by separating the low- and high-mass regimes with an approximate boundary at 8 M⊙. Although some of the outcomes of the star-formation process are different between the two regimes, it is less clear whether the physical processes leading to these outcomes are that different at all. Here, we systematically compare low- and high-mass star formation by reviewing the

We give the full representation theory of the gravitational extended corner symmetry group in two dimensions. This includes projective representations, which correspond to representations of the quantum corner symmetry group. We find that they are described by one-dimensional conformal fields with an additional index in the Fock space of the harmonic oscillator. We begin with a review of Mackey’s theory

Using the 2PI effective action formalism, we study false vacuum decay beyond the quadratic approximation of the path integral. We derive a coupled system of equations for the bounce and the propagator, and we compute a semianalytic expression for the self-energy of a real scalar field with cubic and quartic interactions from the 2PI effective action truncated at two loops and without further approximations

We study the number of propagating degrees of freedom, at nonlinear order, in torsion gravity theories, a class of modified theories of gravity that include a propagating torsion in addition to the metric. We focus on a three-parameter subfamily of theories (“torsion bigravity”) that contains, at linear order, only two physical excitations: a massless spin-2 one (with 2 degrees of freedom) and a massive

This analysis uses the Compact Muon Solenoid (CMS) open data to study the angular distribution of high mass dimuon pairs produced during proton-proton interaction at a center of mass energy of 8 TeV. The study uses the cosθCS variable defined in the Collins-Soper frame. In the Standard Model (SM), the production of high mass dimuon pairs is dominated by the Drell-Yan process, which exhibits a strong

We present for the first time the second-order corrections of pseudoscalar(A) Higgs decay to three parton to higher orders in the dimensional regulator. We compute the one- and two-loop amplitudes for processes, A→ggg and A→qq¯g, in the effective theory framework. With suitable crossing of the external momenta, these calculations are well-suited for predicting the differential distribution of pseudoscalar

We analyze the topological susceptibility and the axion properties in the presence of an external uniform magnetic field, considering a three-flavor Nambu-Jona-Lasinio model that includes strong CP violation through a ’t Hooft-like flavor mixing term. Both thermal and finite density effects are studied for magnetic fields up to 1 GeV2, and the corresponding phase transitions are analyzed. To capture

The spin correlation of back-to-back dihadrons emerges in unpolarized high-energy collision, empowering unpolarized experiments to shed light on the spin-dependent fragmentation functions. This work investigates the transverse spin correlation of back-to-back dihadrons in unpolarized e+e−, pp, and γp collisions, which serves as a novel probe of the chiral-odd fragmentation function H1T(z). We compute

Neutrinoless double-beta (0νββ) decay is an as-yet unobserved nuclear process, which stands to provide crucial insights for model building beyond the Standard Model of particle physics. Its detection would simultaneously confirm the hypothesis that neutrinos are Majorana fermions, thus violating lepton-number conservation, and provide the first measurement of the absolute neutrino mass scale. This

We present universal relations between entanglement entropy, which quantifies the quantum correlation between subsystems, and the cross section, which is the primary observable for high-energy particle scattering, by employing a careful formulation of wave packets for the incoming particles. For 2-to-2 elastic scattering with no initial entanglement and subdividing the system along particle labels

We put forward a physical model of a uniformly accelerated Unruh-DeWitt battery and use quantum work extraction as a probe to witness the thermal nature of the Unruh effect in a high dimensional Minkowski spacetime. By means of the open quantum system approach, we investigate the maximal amount of quantum work extraction with respect to the acceleration-induced Unruh temperature, spacetime dimensionality

Regular rotating black holes are usually described by a metric of the Kerr–Schild form with a particular mass function that is chosen to avoid the ring singularity of the Kerr metric and which approaches the Kerr metric at the asymptotic limit. However, as is well known, even for a class of well-behaved mass functions, the curvature scalars present a discontinuity in the equatorial plane at the ring

No-hair theorems are uniqueness results constraining the form of the metric of black holes in general relativity. These theorems are typically formulated under idealized assumptions, involving a mixture of local (regularity of the horizon) and global aspects (everywhere vacuum spacetime and asymptotic flatness). This limits their applicability to astrophysical scenarios of interest such as binary black

We present a unitary phenomenological model for black hole (BH) evaporation based on the analogy of the laboratory process of spontaneous parametric down conversion (Alsing 2015 Class. Quantum Grav.32 075010; Alsing and Fanto 2016 Class. Quantum Grav.33 0150005) when the BH (pump) is allowed to deplete to zero mass. The model incorporates an additional new feature that allows for the interior Hawking

New gauge bosons coupled to heavy neutral leptons (HNLs) are simple and well-motivated extensions of the Standard Model. In searches for HNLs in proton fixed-target experiments, we find that a large population of gauge bosons (Z′) produced by proton bremsstrahlung may decay to HNLs, leading to a significant improvement in existing bounds on the (mHNL,Uα), where Uα represent the mixing between HNL and

Within the color glass condensate effective field theory, we assess the importance of including a finite size for the target on observables sensitive to small-x evolution. To this end, we study the Balitsky-Kovchegov (BK) equation with impact-parameter dependence in the initial condition. We demonstrate that neglecting the dependence on the impact parameter can result in overestimated saturation effects

The dynamics of cosmic reheating, that is, on how the energy stored in the inflaton is transferred to the standard model (SM) thermal bath, is largely unknown. In this work, we show that the phenomenology of the nonbaryonic dark matter (DM) ultraviolet freeze-in production strongly depends on the dynamics of the cosmic-reheating era. Using a general parametrization for the Hubble expansion rate, and

The dynamical realization of the equation of state p+ρ=0 is studied. A nonpathological dynamics for the perturbations of such a system mimicking a dynamical cosmological constant (DCC) requires to go beyond the perfect fluid paradigm. It is shown that an anisotropic stress must be always present. The Hamiltonian of the system in isolation resembles the one of a Pais-Uhlenbeck oscillator and linear

Extended objects (defects) in quantum field theory exhibit rich, nontrivial dynamics describing a variety of physical phenomena. These systems often involve strong coupling at long distances, where the bulk and defects interact, making analytical studies challenging. By carefully analyzing the behavior of bulk symmetries in the presence of defects, we uncover robust topological constraints on defect

Nucleation rate computations are of broad importance in particle physics and cosmology. Perturbative calculations are often used to compute the nucleation rate Γ, but these are incomplete. We perform nonperturbative lattice simulations of nucleation in a scalar field theory with a tree-level barrier, computing a final result extrapolated to the thermodynamic and continuum limits. Although the system

Early dark energy solutions to the Hubble tension introduce an additional scalar field which is frozen at early times but becomes dynamical around matter-radiation equality. In order to alleviate the tension, the scalar’s share of the total energy density must rapidly shrink from ∼10% at the onset of matter domination to ≪1% by recombination. This typically requires a steep potential that is imposed

Current gravitational wave (GW) detection pipelines for compact binary coalescence based on matched filtering have reported over 90 confident detections during the first three observing runs of the LIGO-Virgo-KAGRA (LVK) detector network. Decreasing the latency of detection, in particular, for future detectors anticipated to have high detection rates, remains an ongoing effort. In this paper, we develop

Here, we discuss an influence of an external weak gravitational field on the gravitational self-decoherence effect with help of the stochastic extension of regularized Shrödinger-Newton equation in a curved background. We derive the master equation and demonstrate that it leads to the experimentally verifiable conclusions about applicability of the classical description of the weak gravitation field

A scenario to understand the asymptotic properties of confinement between quark probes, based on a 4D mixed ensemble of percolating center-vortex world surfaces and chains, was initially proposed by one of us in a non-Abelian setting. More recently, the same physics was reobtained by means of a Schrödinger wave functional peaked at Abelian-projected configurations, which deals with center-vortex lines

We study the electroweak phase transition with a three-dimensional standard model effective field theory at the two-loop level under a gauge-invariant approach. We observe that the phase transition parameters obtained with the gauge-invariant approach deviate from that obtained in the Landau gauge at around the percent level. We give the strongly first-order phase transition condition for electroweak

The semileptonic B(s)→T(JP=2−)l+l− decays induced by flavor changing neural currents are investigated within the light cone quantum chromodynamics (QCD) sum rule method in the leading order of O(αs). We apply the B meson distribution amplitudes up to twist-4 and calculate the relevant form factors of the B(s)→T transitions, where T=K2,a2,f2,ϕ2 with JP=2−. The obtained results of the form factors then

When reduced from 10 to 10−d dimensions tree-level string theory exhibits an O(d,d) symmetry. This symmetry, which is closely related to T duality, appears only after certain field redefinitions. We find a simple form for a subset of these redefinitions at order α′3 and show that they cannot be lifted to ten dimensions. This is inconsistent with “manifestly T duality invariant” approaches such as generalized

We give a general procedure for constructing an extended phase space for Yang-Mills theory at null infinity, capable of handling the asymptotic symmetries and construction of charges responsible for subn-leading soft theorems at all orders. The procedure is coordinate and gauge-choice independent and can be fed into the calculation of both tree and loop-level soft limits. We find a hierarchy in the

Axions have long been considered plausible candidates for dark matter. The axion dark matter emitted from cosmic strings after the Peccei-Quinn (PQ) symmetry breaking in the early Universe was extensively simulated. In this work, we study dark matter and gravitational waves through the lattice simulation of the axion-Higgs string. We gave the dark matter overproduction and the big bang nucleosynthesis

We introduce a novel search strategy for heavy top-philic resonances that induce new contributions to four-top production at the LHC. We capitalize on recent advances in top-tagging performance to demonstrate that the final state, that is expected to be boosted based on current limits, can be fully reconstructed and exploited. Notably, our approach promises bounds on new physics cross sections that

We study the kinetic cooling (heating) of old neutron stars due to coherent scattering with relic neutrinos (sterile neutrino dark matter) via Standard Model neutral-current interactions. We take into account several important physical effects, such as coherent enhancement, gravitational clustering, neutron degeneracy, Pauli blocking and weak potential. We find that the anomalous cooling of neutron

In this work, we uncover a collection of noninvertible topological operators linked to the 0-, 2-, 4-, and 6-form symmetries related to the type IIB superstring effective theory. By pinpointing the SL(2,Z)-covariant conserved currents corresponding to these symmetries, we first derive a set of SL(2,Z)-invariant invertible topological operators that encapsulate the integer Bogomol’nyi-Prasad-Sommerfield